Circulon® Nonstick Bakeware features the TOTAL® Food Release System of circles with DuPont Autograph™ nonstick, which reduces surface abrasion caused by kitchen utensils. These pans are made of heavy gauge carbon steel for proper heat distribution and maximum durability. The high-quality nonstick finish both inside and out delivers excellent food release and means there is no need to grease the pans for baking.